 
 
 
11.7.2  Rational function given by roots and poles
The fcoeff command finds
a rational function given its roots and poles.
- 
fcoeff takes
roots, a list consisting of the roots and poles of a
rational function, each one followed by its multiplicity.
- fcoeff(roots) returns the rational
function with the given roots and poles.
Example
|  | | |  | ⎛ ⎝
 | x−1 | ⎞ ⎠
 | 2 x3 | ⎛ ⎝
 | x−2 | ⎞ ⎠
 | −1 | 
 |  |  |  |  |  |  |  |  |  |  | 
 | 
 
 
